IBM Supercomputer
Wins Speed Crown

ARMONK, N.Y. -- International Business Machines Corp. regained the crown for world supercomputer speed in tests, according to the U.S. Energy Department, which is buying the machine.

The Energy Department said Blue Gene L, which is being installed at its Lawrence Livermore National Laboratory in California, performed 70.72 teraflops, or trillion floating-point operations per second, running the Linpack test program. That puts it well...